The family has not lived on the island, which sports a 4-mile long beach, since the 1950s, according to the BBC.

Pebble Island is 20 miles long and four miles wide. History buffs will recall that the island was the site of the first land-based action of the 1982 Falklands War.

So, what is the price for this paradise in the south Atlantic Ocean? Harris isn’t really sure.

"We went to an estate agency to get it valued, but they couldn't value it because we've owned it for so long,” Harris told the BBC. “There are no recent values on it they can go on. So we're open to offers."

“He is an intellectual thinker and he is a super fun guy,” listing broker Paul Wegener, of Atlanta Fine Homes Sotheby’s International Realty, said about the homeowner. “He dreamed as a child of building something like this. All these things you think about when you are a kid,” Wegener said.

The homeowner had planned to fill the eight bedrooms, 14 bathrooms, six partial bathrooms and three kitchens with family and friends. He had hoped the home would become a gathering place and a legacy for his family to pass from one generation to the next.

He was holding onto the home but ultimately, other priorities won out. His son wasn’t much interested in living there, and with much of his family on the West Coast, the homeowner decided to sell his $30 million project.

In building a home that would last forever and survive any foreseeable catastrophe, he sought out and worked with a team of the best architects, landscapers and security experts in the country.

The process began with a full-scale model, and as construction continued, the homeowner added different features that seemed cool. “He would say, ‘We’ve got more room. I want to add a gun range and a bowling alley.’ The scope of the project continued to grow,” Wegener said.

Atlanta architect Charles Heydt brought to life the homeowner’s vision of the Greek acropolis. Whatever standards were set by building code, the home was made to meet at least triple those requirements. The foundation was dug to the rock bed, anchored with rebar and poured with concrete that can withstand 5,000 pounds of load per square inch. The exterior walls have the same level of strength.

Al Corbi, a renowned security expert, came in to make sure the security features of the home were part of the construction process. Reinforced walls, bulletproof windows and doors, concealed entrances and exits and an underground bunker are just a few of the features that make Rice House one of the safest homes in the country.

The home is also self-contained, and projections indicate that inhabitants could survive for three years on the property without outside assistance, Wegener said.

There are three water sources : municipal, three 1,000-foot-deep artesian wells and a reserve tank of purified water that would normally be used for irrigation on the property and for topping off the pool and fountain.

Wegener was initially skeptical about the need for a house with such high-level security features, but then he thought about events such as 9/11.

“You almost don’t like to say survival, but suddenly it doesn’t become that far-fetched. He was forward-thinking,” Wegener said.

It takes about 2 1/2 hours for Wegener to walk prospective buyers through the property. And yes, there have been prospective buyers.

But who, other than an owner with a vision, would want a property such as this one? Maybe it could be a safe house for board members or executives of a major international corporation or a family haven for another successful entrepreneur in a high-risk industry.

So far, inquiries have been coming from outside and within the country. The security of the home has proved to be the biggest draw, along with the level of detail that went into designing the home, Wegener said.

There have also been some curiosity seekers who are clearly not serious buyers.

“The serious interest comes from the same crowd,” Wegener said. “This particular project is the cream of the crop for the amount of money spent and the degree of security.”

While the home is complete, the finishing touches have been left to the whims of the new owner. Wegener says it is the most unique home he has ever dealt with and it is important to him to find just the right buyer.

“There are homes (in Atlanta) that are beautiful but were never constructed to this level of complexity,” Wegener said. “It was not just meant to be a massive compound. It was important to him to construct this property that would be enjoyable. It was ultimately for family and these other things were layered in. I am trying to find someone that will appreciate all of that.”

When it comes to diabetes, the numbers are staggering -- 30 million Americans are estimated to be living with the disease, 1.4 million new cases are diagnosed annually in the United States and about 25 percent of those patients don’t know they have the disease.

Those numbers caught the attention of some Harvard students who came up with an easy way for people to track their blood sugar levels.

Sloan, who has consulted with the budding entrepreneurs, said gamification has been shown to work for health care.

He believes this approach can get people to pay attention to diabetes earlier.

“It has the potential to change things dramatically,” Sloan said. “Convincing young people, from my experience, has been very difficult. Even from a personal perspective, one of the last things I wanted to pay attention to was my blood sugar.”

Dr. Sloan said earlier interventions can reduce serious complications like kidney failure, amputations, and heart disease later in life.

The six-bedroom, 7.5-bathroom home across the street from Pease Park was built in 1924 and has since been remodeled. The 8,158-square-foot home has a pool with a fountain, a pool house with a full bathroom and kitchenette and a covered outdoor living area.

In the market for a whimsical $550,000 home with carpeted ceilings, vintage cars and statues lurking around every corner? No? You'll still want to check out the now-viral listing for Detroit's Lion Gate Estate. Trust us.

"Unique barely begins to describe this one of a kind Grixdale Farms estate," reads the listing by Real Estate One's Alex Lauer. "Every aspect of 'Lion Gate Estate' has been articulated with painstaking attention to detail and mind blowing decorative flair. Too many custom features to list!"

And he's not kidding. The three-bedroom, two-bathroom home, owned by a former automotive designer, is the definition of "extra," with a "Liberace-inspired living room" and "museum-like" interior, Curbed reports.

Forget about "Snakes on a Plane”; we're more concerned with snakes in the yard. Even though snakes are nowhere near as prevalent as our irrational fears would have us think (assuming you don't live smack dab in the middle of rattlesnake territory), if you're a homeowner with a bit of landscape or yard under your direction, you may encounter snakes on occasion.

"As a general rule, snakes are just as frightened of you as possibly you are of them and often they move as quickly as possible in the other direction," the extension noted. Venomous snake bites are rare and you can readily take steps to treat them. If you're an avid gardener, you may even want snakes in your slice of the great outdoors, since they dine on rodents and insects and can actually help protect you from garden pests.

"There are no magic or absolute solutions," AWR asserted. "There are no poisons or repellents that work, though some new 'breakthrough' is occasionally advertised. Horsehair ropes and trails of mothballs have consistently tested negative, and pest control operators have no answers."

But there are still plenty of valid ways to limit, or possibly eliminate, a slithery presence in your yard, garden or home. Here are five tips from the pros on how to keep snakes out of your yard:

1. Seal crevices. Closer to your home, seal the openings where snakes like to set up house. "Check the clearance of door bottoms, weep holes, openings where pipes enter, cracks and spaces under eaves," AWR recommended. "Don't neglect storerooms and sheds."

AWR added that sealing enough openings to make a difference is much more difficult if you own a raised wooden home.

2. Tidy up the yard. Snakes might choose to live on your property or simply travel through, according to AWR. You want to make your property as inhospitable as possible, so concentrate on ridding it of any places snakes would consider good spots to hide. Remove debris, from piles of boards, tin, sticks and leaves to flat boats on the ground and piles of bricks or stone, AWR advised, and keep vegetation cut back.

3. Stop serving the snake's preferred menu. It's a win-win. When you take away potential hiding places for snakes, the spots where rat and mice families like to congregate are also eliminated. But take this one step further, AWR advised, and take further steps to get rid of the rodents that snakes like to snack on. You may want to involve a pest control agent, but you definitely want to practice anti-rodent hygiene, including not leaving pet food out for more than an hour or so, closing trash cans tightly and securing compost in a sealed container.

4. Combat the climbers. If limbs from a neighbor's yard hang over your fence, snakes may use them as an entry to your place. Consider working with your neighbor to get them trimmed.

5. Consider the snake-proof fence. If you live in an area where one or more venomous snakes are common, you may want to invest in a snake-proof fence, according to NCSU. "Small areas where children play can be protected from all poisonous and most harmless snakes with a snake-proof fence," it noted. "However, the cost of the fence may make it impractical to protect an entire yard."

Make a fence by burying 1/4-inch mesh wire screening 6 inches underground and building it up 30 inches, instructed NCSU.

"It should slant outward at a 30-degree angle from bottom to top. The supporting stakes must be inside the fence and any gates must fit tightly. Tall vegetation must be removed along the fence, both inside and outside."

It's costly, but you can snake-proof the entire yard with a concrete chain wall that extends six inches or so below the surface, noted AWR.

"If you already have a wooden fence and the boards are very close together, a good solution is to snake-proof the bottom."

One fairly cheap way is to use 1/4-inch hardware cloth cut in strips wide enough to overlap the bottom of the fence so it can be tacked securely and extend down into a narrow trench six inches deep.

AWR added another word of caution for either snake-proof fence design. (Spoiler alert: It's nightmare inducing.) "Many snakes climb by looping over objects and the above described design may virtually eliminate their entry," it noted. "Others, however, can crawl up vertical surfaces if they are rough, such as the trunk of a tree or a brick wall (including the side of a house)."

To overcome this creepy climbing capability, you can place a foot-wide ledge made of wood or metal flashing along the outer side at the top. "This structure makes the snakes lean out away from the wall and it will lose its grip and fall."

After all this snake talk, AWR does have one bit of great news. "Snakes are rarely abundant in any one location."

And if all your efforts fail and snakes do make their way into your yard, AWR recommended the ultimate fail-safe.

"The best thing you can do for yourself and family is to teach everyone to respect snakes and to be on the lookout for them," according to the AWR website. "Remember, don't touch it with your hands. Use a shovel to place the snake in a deep bucket with a cover. The chances of your encountering a venomous species is remote, but possible enough to always by careful!"